private Rectangle GetRectangle(ResizePosition value)
{
Shape tempShape = doc.allShapes[indexOfSelectedShape.Value];
switch (value)
{
case ResizePosition.LeftUp:
return(new Rectangle(tempShape.StartOrigin.X - 7, tempShape.StartOrigin.Y - 7, sizeNodeRect, sizeNodeRect));
case ResizePosition.LeftMiddle:
return(new Rectangle(tempShape.StartOrigin.X - 7, tempShape.StartOrigin.Y + tempShape.Height / 2, sizeNodeRect, sizeNodeRect));
case ResizePosition.LeftBottom:
return(new Rectangle(tempShape.StartOrigin.X - 7, tempShape.StartOrigin.Y + 5 + tempShape.Height, sizeNodeRect, sizeNodeRect));
case ResizePosition.BottomMiddle:
return(new Rectangle(tempShape.StartOrigin.X + tempShape.Width / 2, tempShape.StartOrigin.Y + 5 + tempShape.Height, sizeNodeRect, sizeNodeRect));
case ResizePosition.RightUp:
return(new Rectangle(tempShape.StartOrigin.X + 5 + tempShape.Width, tempShape.StartOrigin.Y - 7, sizeNodeRect, sizeNodeRect));
case ResizePosition.RightBottom:
return(new Rectangle(tempShape.StartOrigin.X + 5 + tempShape.Width, tempShape.StartOrigin.Y + 5 + tempShape.Height, sizeNodeRect, sizeNodeRect));
case ResizePosition.RightMiddle:
return(new Rectangle(tempShape.StartOrigin.X + 5 + tempShape.Width, tempShape.StartOrigin.Y + tempShape.Height / 2, sizeNodeRect, sizeNodeRect));
case ResizePosition.UpMiddle:
return(new Rectangle(tempShape.StartOrigin.X + tempShape.Width / 2, tempShape.StartOrigin.Y - 6, sizeNodeRect, sizeNodeRect));
default:
return(new Rectangle());
}
}
private Cursor GetCursor(ResizePosition p)
{
switch (p)
{
case ResizePosition.LeftUp:
return(Cursors.SizeNWSE);
case ResizePosition.LeftMiddle:
return(Cursors.SizeWE);
case ResizePosition.LeftBottom:
return(Cursors.SizeNESW);
case ResizePosition.BottomMiddle:
return(Cursors.SizeNS);
case ResizePosition.RightUp:
return(Cursors.SizeNESW);
case ResizePosition.RightBottom:
return(Cursors.SizeNWSE);
case ResizePosition.RightMiddle:
return(Cursors.SizeWE);
case ResizePosition.UpMiddle:
return(Cursors.SizeNS);
default:
return(Cursors.Default);
}
}
private Point GetResizeOrigin(Rect bounds, ResizePosition resizePos)
{
switch (resizePos)
{
case ResizePosition.TopLeft:
return(bounds.BottomRight);
case ResizePosition.Top:
return(new Point(bounds.Left + bounds.Width / 2.0, bounds.Bottom));
case ResizePosition.TopRight:
return(bounds.BottomLeft);
case ResizePosition.Left:
return(new Point(bounds.Right, bounds.Top + bounds.Height / 2.0));
case ResizePosition.Right:
return(new Point(bounds.Left, bounds.Top + bounds.Height / 2.0));
case ResizePosition.BottomLeft:
return(bounds.TopRight);
case ResizePosition.Bottom:
return(new Point(bounds.Left + bounds.Width / 2.0, bounds.Top));
case ResizePosition.BottomRight:
return(bounds.TopLeft);
}
throw new NotImplementedException("The desired ResizePos is not implemented in GetResizeOrigin");
}
public override void OnStartResize(ResizePosition resizePos, Point resizeOrigin)
{
base.OnStartResize(resizePos, resizeOrigin);
if (Line == null)
{
return;
}
_DragStartPoint1 = Line.StartPoint;
_DragStartPoint2 = Line.EndPoint;
}
public override void OnStartResize(ResizePosition resizePos, Point resizeOrigin)
{
base.OnStartResize(resizePos, resizeOrigin);
if (Ellipse == null)
{
return;
}
var s = new Vector(Ellipse.RadiusX, Ellipse.RadiusY);
_DragStartRect = new Rect(Ellipse.Center - s, Ellipse.Center + s);
}
public override void OnStartResize(ResizePosition resizePos, Point resizeOrigin)
{
base.OnStartResize(resizePos, resizeOrigin);
if (Path == null)
{
return;
}
_DragStartPoints = new List <Point>();
ForEachAbsPoint(args => _DragStartPoints.Add(args.Point));
}
public override void OnUpdateResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
base.OnUpdateResize(newBounds, resizePos, resizeOrigin);
if (Rectangle == null)
{
return;
}
Rectangle.Rect = newBounds;
GeometryChanged();
}
private void pnlGraphic_MouseDown(object sender, MouseEventArgs e)
{
mIsClick = true;
if (selectionMode && doc.allShapes.Count == 0)
{
MessageBox.Show("Няма фигури за избиране !");
}
else if (selectionMode && doc.allShapes.Count != 0)
{
for (int i = doc.allShapes.Count - 1; i >= 0; i--)
{
if (doc.allShapes[i].ContainsPoint(e.Location))
{
isShapeWasSelected = true;
Shape tempShape = doc.allShapes[i];
if (doc.allShapes.Count == 2 && tempShape != doc.allShapes[doc.allShapes.Count - 1])
{
doc.allShapes[i] = doc.allShapes[i + 1];
doc.allShapes[i + 1] = tempShape;
}
else if (doc.allShapes.Count > 2 && tempShape != doc.allShapes[doc.allShapes.Count - 1])
{
for (int j = i; j < doc.allShapes.Count - 1; j++)
{
doc.allShapes[j] = doc.allShapes[j + 1];
}
doc.allShapes[doc.allShapes.Count - 1] = tempShape;
}
indexOfSelectedShape = doc.allShapes.Count - 1;
mMove = true;
break;
}
}
if (isShapeWasSelected && indexOfSelectedShape != null)
{
btnDefaultColor.BackColor = doc.allShapes[indexOfSelectedShape.Value].ChosenColor;
nodeSelected = ResizePosition.None;
nodeSelected = GetNodeSelectable(e.Location);
}
}
else if (!selectionMode)
{
paint = true;
}
startPoint.X = e.X;
startPoint.Y = e.Y;
pnlGraphic.Invalidate();
}
public override void OnUpdateResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
base.OnUpdateResize(newBounds, resizePos, resizeOrigin);
if (Ellipse == null)
{
return;
}
Ellipse.RadiusX = newBounds.Width / 2.0;
Ellipse.RadiusY = newBounds.Height / 2.0;
Ellipse.Center = newBounds.TopLeft + new Vector(Ellipse.RadiusX, Ellipse.RadiusY);
GeometryChanged();
}
public override void OnUpdateResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
base.OnUpdateResize(newBounds, resizePos, resizeOrigin);
if (Line == null)
{
return;
}
var transform = CalcResizeTransform(newBounds, resizeOrigin);
Line.StartPoint = transform.Transform(_DragStartPoint1);
Line.EndPoint = transform.Transform(_DragStartPoint2);
GeometryChanged();
}
public override void OnUpdateResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
base.OnUpdateResize(newBounds, resizePos, resizeOrigin);
if (Path == null || _DragStartPoints == null)
{
return;
}
var transform = CalcResizeTransform(newBounds, resizeOrigin);
int n = 0;
ForEachAbsPoint(args =>
{
if (n < _DragStartPoints.Count)
{
args.Point = transform.Transform(_DragStartPoints[n++]);
args.PointModified = true;
}
});
GeometryChanged();
}
private void ShowResizeMouseCursor(MouseEventArgsEx e)
{
Point p = PointToClient(new Point(e.ScreenX, e.ScreenY));
int w = this.Content.Width;
int h = this.Content.Height;
int x = this.Content.Left;
int y = this.Content.Top;
int offset = this.resizeCornerOffset;
// x1 y1 x2 y2 x3 y3 x4 y4 的 1 2 3 4 的 顺序 是 左上角 左下角 右下角 右上角
int x1 = x - offset;
int y1 = y - offset;
int x2 = x - offset;
int y2 = y + h - 1 + offset;
int x3 = x + w - 1 + offset;
int y3 = y + h - 1 + offset;
int x4 = x + w - 1 + offset;
int y4 = y - offset;
int c = this.resizeCornerSize;
if (p.X >= x3 - c && p.X <= x3 && p.Y >= y3 - c && p.Y <= y3)
{
this.Cursor = Cursors.SizeNWSE;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.RightBottom;
}
else if (p.X >= x1 && p.X <= x1 + c && p.Y >= y1 && p.Y <= y1 + c)
{
this.Cursor = Cursors.SizeNWSE;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.LeftTop;
}
else if (p.X >= x2 && p.X <= x2 + c && p.Y >= y2 - c && p.Y <= y2)
{
this.Cursor = Cursors.SizeNESW;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.LeftBottom;
}
else if (p.X >= x4 - c && p.X <= x4 && p.Y >= y4 && p.Y <= y4 + c)
{
this.Cursor = Cursors.SizeNESW;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.RightTop;
}
else if (p.X >= x2 && p.X <= x3 && p.Y >= y2 - c && p.Y <= y2)
{
this.Cursor = Cursors.SizeNS;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.Bottom;
}
else if (p.X >= x1 && p.X <= x4 && p.Y >= y1 && p.Y <= y1 + c)
{
this.Cursor = Cursors.SizeNS;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.Top;
}
else if (p.X >= x1 && p.X <= x1 + c && p.Y >= y1 && p.Y <= y2)
{
this.Cursor = Cursors.SizeWE;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.Left;
}
else if (p.X >= x4 - c && p.X <= x4 && p.Y >= y4 && p.Y <= y3)
{
this.Cursor = Cursors.SizeWE;
this.isMouseInResizeArea = true;
this.resizePosition = ResizePosition.Right;
}
else
{
if (this.isMouseInResizeArea)
{
this.Cursor = Cursors.Default;
this.isMouseInResizeArea = false;
}
}
}
public override void OnStartResize(ResizePosition resizePos, Point resizeOrigin)
{
base.OnStartResize(resizePos, resizeOrigin);
}
public override void OnUpdateResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
base.OnUpdateResize(newBounds, resizePos, resizeOrigin);
Position = newBounds.TopLeft;
Size = newBounds.Size;
}
private Rect CalcNewResizeBounds(Rect oldBounds, ResizePosition resizePos, Vector delta)
{
switch (resizePos)
{
case ResizePosition.TopLeft:
if (delta.X > oldBounds.Width)
{
delta.X = oldBounds.Width;
}
if (delta.Y > oldBounds.Height)
{
delta.Y = oldBounds.Height;
}
return(new Rect(oldBounds.TopLeft + delta, oldBounds.BottomRight));
case ResizePosition.Top:
delta.X = 0.0;
if (delta.Y > oldBounds.Height)
{
delta.Y = oldBounds.Height;
}
return(new Rect(oldBounds.TopLeft + delta, oldBounds.BottomRight));
case ResizePosition.TopRight:
if (delta.X < -oldBounds.Width)
{
delta.X = -oldBounds.Width;
}
if (delta.Y > oldBounds.Height)
{
delta.Y = oldBounds.Height;
}
return(new Rect(oldBounds.TopRight + delta, oldBounds.BottomLeft));
case ResizePosition.Left:
if (delta.X > oldBounds.Width)
{
delta.X = oldBounds.Width;
}
delta.Y = 0.0;
return(new Rect(oldBounds.TopLeft + delta, oldBounds.BottomRight));
case ResizePosition.Right:
if (delta.X < -oldBounds.Width)
{
delta.X = -oldBounds.Width;
}
delta.Y = 0.0;
return(new Rect(oldBounds.TopRight + delta, oldBounds.BottomLeft));
case ResizePosition.BottomLeft:
if (delta.X > oldBounds.Width)
{
delta.X = oldBounds.Width;
}
if (delta.Y < -oldBounds.Height)
{
delta.Y = -oldBounds.Height;
}
return(new Rect(oldBounds.BottomLeft + delta, oldBounds.TopRight));
case ResizePosition.Bottom:
delta.X = 0.0;
if (delta.Y < -oldBounds.Height)
{
delta.Y = -oldBounds.Height;
}
return(new Rect(oldBounds.BottomLeft + delta, oldBounds.TopRight));
case ResizePosition.BottomRight:
if (delta.X < -oldBounds.Width)
{
delta.X = -oldBounds.Width;
}
if (delta.Y < -oldBounds.Height)
{
delta.Y = -oldBounds.Height;
}
return(new Rect(oldBounds.BottomRight + delta, oldBounds.TopLeft));
}
return(oldBounds);
}
public virtual void OnStartResize(ResizePosition resizePos, Point resizeOrigin)
{
_ResizeStartBounds = VertexBounds;
SetModified();
}
public virtual void OnFinishResize(Rect newBounds, ResizePosition resizePos, Point resizeOrigin)
{
SetModified();
}